Human Body Trivia Questions and Answers
Which parts of the body are formed by the bones of the metatarsals
and phalanges?
A: Feet.
What is the fluid that lubricates and cushions the movable joints
between the bones?
A: Synovial fluid.
What is the oxygen-carrying protein found in the red
blood cells of
the body?
A: Hemoglobin.
What are the chemicals produced by the endocrine glands to control
body functions?
A: Hormones.
Where in the human body do you find the alveoli?
A: Lung.
What name is given to the genetic make-up of an individual?
A: Genotype.
A bone is joined to a muscle by which structure?
A: Tendon.
What is the biggest bone in the body?
A: Femur.
Which of the retina's cells can distinguish between different
wavelengths of light?
A: Cone cells.
What is the name of the large buttock and thigh muscle?
A: Gluteus maximus.
Which hormone causes male sexual development?
A: Testosterone.
Which part of the brain controls the
heart rate?
A: Medulla oblongata.
How many genes are there in the human genome?
A: 80,000.
When the egg is released from the ovary, what is left behind?
A: Corpus luteum.
What is an overgrowth of fibrous tissue, usually produced at the site
of a scar?
A: Keloid.
Which is the only vein in the body to carry oxygenated blood?
A: Pulmonary vein.
Which human body organ weighs about 2 kilos?
A: Liver.
What is the threshold of noise-induced pain, measured in decibels?
A: 140db.
Which name is given to the heart chamber which receives blood?
A: Atrium.
Which organ makes bile?
A: Liver.
What kind of joint is the hip?
A: Ball-and-socket.
What term is given to the lymphocytes which mature in the thymus?
A: T cells.
Where is the sinoatrial node?
A: Heart.
What is the substance that the body over-produces in an allergic
reaction to pollen?
A: Histamine.
Where is the pituitary gland?
A: In the brain.
Which organ of the body secretes insulin?
A: Pancreas.
Where are the semicircular canals?
A: The inner ear.
Which part of the gut absorbs water from the
food?
A: Colon.
Where would you find the islets of Langerhans?
A: Pancreas.
What is the colored muscle that responds involuntarily to light?
A: Iris.
What is the name of the enzyme produced in the mouth?
A: Salivary amylase.
Which glands secrete estrogen?
A: Ovaries.
The pituitary controls many hormones, but what controls the
pituitary?
A: Hypothalamus.
What is the pigment that colors skin?
A: Melanin.
Which tissue secretes progesterone during the second half of the
menstrual cycle?
A: Corpus luteum.
Which gland secretes the corticosteroids?
A: Adrenal.
What are the natural pain-killing substances produced in the brain
and pituitary gland?
A: Endorphins.
In which organ are the feces formed?
A: Colon.
What is the function of the islets of Langerhans?
A: They secrete insulin.
What is the scientific name for the heart's pacemaker?
A: Sinoatrial node.
Which hormone helps control ovulation?
A: Luteinizing hormone.
What hormone was discovered by John Jacob Abel?
A: Adrenaline.
What is the substance produced by hard
exercise and oxygen debt,
causing stiffness in the muscles?
A: Lactic acid.
Where would you find the carotid arteries?
A: Neck.
Of what do we have 52 in a lifetime, 20 of which are deciduous?
A: Teeth.
Which protein forms hair and nails?
A: Keratin.
